More ideas from pavoris
Drill or cut a big 'feeding' hole in the bottom and a hanging hole in the lid then fill it with hay or paper shred plus seeds and treats throughout!:

Drill or cut a 'feeding' hole near the bottom, small enough that your bird's head can't get stuck in it. Next poke or drill a hanging hole in the lid. Lastly fill it with hay or paper shred plus seeds and treats throughout!